CVE-2026-111439

{
  "id": "CVE-2026-111439",
  "sourceIdentifier": "a1a479f7-907b-4ae8-a999-9148cadc9224",
  "published": "2026-10-19T08:17:02.130",
  "lastModified": "2026-10-19T20:56:36.663",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "在 openGauss-server的 src/common/backend/utils/adt/genfile.cpp 模块中，内置函数 pg_read_binary_file_blocks() 存在权限校验逻辑缺陷。该函数在入口处仅校验了起始块号（startBlockNum）和块数量（blockCount）的范围，随后直接调用底层文件读取例程 ReadBinaryFileBlocksFirstCall()。该底层例程仅执行了路径规范化检查以及针对 .. 路径遍历和数据目录边界的基本检查，缺失了对调用者数据库权限（如 SELECT 权限）的校验。此外，辅助函数 is_row_data_file() 也仅用于识别文件形态，未包含权限检查。因此，任何拥有普通数据库连接权限的用户，只要能够通过 pg_relation_filepath() 等函数获取到目标表的底层关系文件路径（例如压缩数据的 _compress 文件路径），即可无需具备该表的 SELECT 权限，直接读取表数据的二进制块。\n此漏洞影响此前3.0.0到6.0.0间的所有版本及补丁版，并在7.0.0-LTS版本修复。修复patch详见：https://gitcode.com/opengauss/openGauss-server/pull/9374。"
    }
  ],
  "affected": [
    {
      "source": "a1a479f7-907b-4ae8-a999-9148cadc9224",
      "affectedData": [
        {
          "vendor": "openGauss-server",
          "product": "openGauss-server",
          "defaultStatus": "unaffected",
          "collectionURL": "https://opengauss.org/zh/download/archive/?version=7.0.0%20(LTS)",
          "platforms": [
            "openEuler Centos"
          ],
          "versions": [
            {
              "version": "7.0.0-LTS",
              "status": "unaffected"
            },
            {
              "version": "3.0.0-3.0.5",
              "status": "affected"
            },
            {
              "version": "3.1.0-3.1.1",
              "status": "affected"
            },
            {
              "version": "5.0.0-RC1",
              "status": "affected"
            },
            {
              "version": "5.0.0-5.0.3",
              "status": "affected"
            },
            {
              "version": "5.1.0",
              "status": "affected"
            },
            {
              "version": "6.0.0-RC1",
              "status": "affected"
            },
            {
              "version": "6.0.0-6.0.6",
              "status": "affected"
            },
            {
              "version": "7.0.0-RC1, 7.0.0-RC2, 7.0.0-RC3",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "a1a479f7-907b-4ae8-a999-9148cadc9224",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-19T17:24:53.483125Z",
          "id": "CVE-2026-111439",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "a1a479f7-907b-4ae8-a999-9148cadc9224",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gitcode.com/opengauss/openGauss-server/pull/9374",
      "source": "a1a479f7-907b-4ae8-a999-9148cadc9224"
    }
  ]
}